The perfect position of electrical components on PCBs in communication system industry From the mechanical aspects' viewpoint

The structure of a printed circuit board (PCB) is very complicated for Improving the reliability of printed circuit boards is critical to predicting the designation of any possible locations subject to vibration than others. Avoid placing heavy electronic components. Our research focuses on obtaining the optimal design with less cost and faster design time. We proposed a new methodology that differs from traditional methods, the method of designing printed circuit boards, which includes two stages. First, we analyzed the vibration of a multilayer printed circuit board with installed components. To test the model, we compare the results of the FEM simulation with the experimental results for a printed circuit board. A comparison of experimental and simulation results shows that they coincide well. We perform PCB vibration analysis using the FEM method using a “concentrated weight” element that replaces the actual geometry of the component. The second is to choose the optimal mounting for the printed circuit board, which provides the minimum vibration effect. To achieve this goal, we investigated four types of fixing the sides of the board at the design stage. They analyzed the boards to show mechanical effects using the finite element method (FEM) and engineering analysis (simulation) of Cero Elements / Pro 5.0. An analytical calculation of the behavior of boards with the same mounting techniques was also carried out. The results of modeling comparison and analytical calculation showed good agreement; the difference does not exceed 12%.